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    • 3. 发明授权
    • Pseudorandom sequence generation for OFDM cellular systems
    • OFDM蜂窝系统的伪随机序列生成
    • US08755453B2
    • 2014-06-17
    • US12326878
    • 2008-12-02
    • Badri VaradarajanAnand G. DabakTarkesh PandeEko N. Onggosanusi
    • Badri VaradarajanAnand G. DabakTarkesh PandeEko N. Onggosanusi
    • H04L27/00
    • H04L5/0048H04B1/04H04L23/02H04L25/0202H04L27/2607H04L27/2613H04L27/2649
    • In one embodiment, a transmitter includes a binary sequence generator unit configured to provide a sequence of reference signal bits, wherein the sequence is an inseparable function of a cell identification parameter, a cyclic prefix mode corresponding to the transmitter and one or more time indices of the sequence. The transmitter also include a mapping unit that transforms the sequence of reference signal bits into a complex reference signal, and a transmit unit configured to transmit the complex reference signal. In another embodiment, a receiver includes a receive unit configured to receive a complex reference signal and a reference signal decoder unit configured to detect a sequence of reference signal bits from the complex reference signal, wherein the sequence is an inseparable function of a cell identification parameter, a cyclic prefix mode corresponding to a transmitter and one or more time indices of the sequence.
    • 在一个实施例中,发射机包括被配置为提供参考信号比特序列的二进制序列发生器单元,其中该序列是小区识别参数的不可分离的功能,对应于发射机的循环前缀模式和一个或多个时间指数 序列。 发射机还包括将参考信号比特序列变换为复参考信号的映射单元,以及配置成发送复基准信号的发射单元。 在另一实施例中,接收机包括被配置为接收复参考信号的接收单元和被配置为从复参考信号检测参考信号位序列的参考信号解码器单元,其中该序列是小区识别参数的不可分离的函数 ,对应于发射机的循环前缀模式和序列的一个或多个时间索引。
    • 7. 发明授权
    • Code division multiple access wireless system with closed loop mode using ninety degree phase rotation and beamformer verification
    • 码分多址无线系统采用闭环模式,采用九十度相位旋转和波束形成器验证
    • US07711034B2
    • 2010-05-04
    • US12331279
    • 2008-12-09
    • Anand G. DabakEko N. Onggosanusi
    • Anand G. DabakEko N. Onggosanusi
    • H04B1/69
    • H04B7/0615H04B7/0617H04B7/0634H04B7/0645H04B7/0654H04B7/0857H04B17/104H04B17/24
    • A wireless communication system (10). The system comprises a user station (12). The user station comprises despreading circuitry (22) for receiving and despreading a plurality of slots received from at least a first transmit antenna (A121) and a second transmit antenna (A122) at a transmitting station (14). Each of the plurality of slots comprises a first channel (DPCH) comprising a first set of pilot symbols and a second channel (PCCPCH) comprising a second set of pilot symbols. The user station further comprises circuitry (50) for measuring a first channel measurement (α1,n) for each given slot in the plurality of slots from the first transmit antenna and in response to the first set of pilot symbols in the given slot. The user station further comprises circuitry (50) for measuring a second channel measurement (α2,n) for each given slot in the plurality of slots from the second transmit antenna and in response to the second set of pilot symbols in the given slot. The user station further comprises circuitry (52) for measuring a phase difference value (φ2(n)) for each given slot in the plurality of slots in response to the first channel measurement and the second channel measurement for the given slot and in response to a ninety degree rotation of the given slot relative to a slot which was received by the despreading circuitry immediately preceding the given slot.
    • 一种无线通信系统(10)。 该系统包括用户站(12)。 用户站包括解扩电路(22),用于在发射站(14)处接收和解扩从至少第一发射天线(A121)和第二发射天线(A122)接收的多个时隙。 多个时隙中的每一个包括包括第一组导频符号的第一信道(DPCH)和包括第二组导频符号的第二信道(PCCPCH)。 用户站还包括用于测量来自第一发射天线的多个时隙中的每个给定时隙的第一信道测量(α1,n)以及响应给定时隙中的第一组导频符号的电路(50)。 用户站还包括用于测量来自第二发射天线的多个时隙中的每个给定时隙的第二信道测量(α2,n)以及响应给定时隙中的第二组导频符号的电路(50)。 用户站还包括用于响应于第一信道测量和给定时隙的第二信道测量而在多个时隙中针对每个给定时隙测量相位差值(&phgr; 2(n))的电路(52) 响应于相对于由紧接在给定时隙之前的解扩电路接收的时隙的给定时隙的九十度旋转。
    • 9. 发明授权
    • Code division multiple access wireless system with closed loop mode using ninety degree phase rotation and beamformer verification
    • 码分多址无线系统采用闭环模式,采用九十度相位旋转和波束形成器验证
    • US07463700B2
    • 2008-12-09
    • US11681088
    • 2003-03-01
    • Anand G. DabakEko N. Onggosanusi
    • Anand G. DabakEko N. Onggosanusi
    • H04L27/00H04L27/06H04B1/69
    • H04B7/0615H04B7/0617H04B7/0634H04B7/0645H04B7/0654H04B7/0857H04B17/104H04B17/24
    • A wireless communication system (10). The system comprises a user station (12). The user station comprises despreading circuitry (22) for receiving and despreading a plurality of slots received from at least a first transmit antenna (A121) and a second transmit antenna (A122) at a transmitting station (14). Each of the plurality of slots comprises a first channel (DPCH) comprising a first set of pilot symbols and a second channel (PCCPCH) comprising a second set of pilot symbols. The user station further comprises circuitry (50) for measuring a first channel measurement (α1,n) for each given slot in the plurality of slots from the first transmit antenna and in response to the first set of pilot symbols in the given slot. The user station further comprises circuitry (50) for measuring a second channel measurement (α2,n) for each given slot in the plurality of slots from the second transmit antenna and in response to the first set of pilot symbols in the given slot. The user station further comprises circuitry (52) for measuring a phase difference value (φ2(n)) for each given slot in the plurality of slots in response to the first channel measurement and the second channel measurement for the given slot and in response to a ninety degree rotation of the given slot relative to a slot which was received by the despreading circuitry immediately preceding the given slot.
    • 一种无线通信系统(10)。 该系统包括用户站(12)。 用户站包括解扩电路(22),用于在发射站(14)处接收和解扩从至少第一发射天线(A121)和第二发射天线(A122)接收的多个时隙。 多个时隙中的每一个包括包括第一组导频符号的第一信道(DPCH)和包括第二组导频符号的第二信道(PCCPCH)。 用户站还包括用于测量来自第一发射天线的多个时隙中的每个给定时隙的第一信道测量(α1,n)以及响应于给定时隙中的第一组导频符号的电路(50)。 用户站还包括电路(50),用于响应于给定时隙中的第一组导频符号,测量来自第二发射天线的多个时隙中的每个给定时隙的第二信道测量(α2,n)。 用户站还包括电路(52),用于响应于给定时隙的第一信道测量和第二信道测量以及响应于第二信道测量而测量多个时隙中的每个给定时隙的相位差值(phi2(n)), 给定时隙相对于由紧接在给定时隙之前的解扩电路接收的时隙的九十度旋转。